/*
 * Copyright (C) 2011 JiangHongTiao <jjurco.sk_gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package sk.lieskove.jianghongtiao.websearch.document.preprocessing.actions;

import org.apache.log4j.Logger;
import sk.lieskove.jianghongtiao.common.utils.PropertiesUtils;
import sk.lieskove.jianghongtiao.websearch.service.ExcludeReasonEnum;
import sk.lieskove.jianghongtiao.websearch.persistence.WebSearchResponse;

/**
 * Date of create: Oct 12, 2011
 *
 * @author JiangHongTiao <jjurco.sk_gmail.com>
 * @version 2011.1012
 */
public class ExcludeEmpty implements PreprocessAction {

    private Logger log = Logger.getLogger(ExcludeEmpty.class);
    private PropertiesUtils pu = new PropertiesUtils(ExcludeEmpty.class);

    @Override
    public WebSearchResponse preprocess(WebSearchResponse response) {
        if (response.getOriginalFile() == null) {
            return response;
        }
        if (response.getFile() == null) {
            return response;
        }
        String min = pu.getProperty("minimal-file-size");
        int minValue = Integer.parseInt(min);
        if (response.getOriginalFile().length() < minValue) {
            response.setExcludeReasonEnum(ExcludeReasonEnum.TOO_SMALL_FILE);
            log.info("Exclude document: " + response.getOriginalFile().
                    getAbsolutePath() + " because document size is: "
                    + response.getOriginalFile().length());
            return response;
        }
        if (response.getFile().length() < minValue) {
            response.setExcludeReasonEnum(ExcludeReasonEnum.TOO_SMALL_FILE);
            log.info("Exclude document: " + response.getFile().
                    getAbsolutePath() + " because document size is: "
                    + response.getFile().length());
        }
        return response;
    }
}
